<!DOCTYPE html>
<html>
 
	<head>
		<meta charset="UTF-8">
		<title></title>
		<link href="css/1.css" type="text/css" rel="stylesheet" />
		<style>
		.box{
			border: 1px solid black;
			
		}
		#b{
			width: 100px;
			height: 100px;
			border: 1px solid black;
		}
		.box ol{
			overflow: hidden;
		}
		.box ol li{
			border: 1px solid black;
			float: left;
			
		}
		</style>
	</head>
 
	<body>
		<div class="box">
			<ol id="0">
				<li><a href="#">清除浮动</a></li>
				<li><a href="#">清除浮动</a></li>
				<li><a href="#">清除浮动</a></li>
				
			</ol>
			<div id="b">
				
			</div>
		</div>
	</body>
 
</html>